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JavaScript/jQuery to download file via POST with JSON data
...ge if the return mime type is something that a browser would open, but for csv and such it's perfect
Example requires underscore and jquery
var postData = {
filename:filename,
filecontent:filecontent
};
var fakeFormHtmlFragment = "<form style='display: none;' method='POST' action='"+SAV...
使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...这些连接以及设备发现和广告的规则由蓝牙通用访问配置文件 (GAP) 管理，这是所有 BLE 设备都必须遵守的强制性框架。
广播者与观察者 - 在这种情况下，嵌入在各种物联网设备中的传感器将定期向监听范围内的智能手机发送广...
What is the meaning of erb?
...der a html page. But you can easily make it respond with .xml or .json or .csv if you write a web api for it
Erb is a library class that generates text. Nothing more. It expects a file that contains static text and ruby code mixed. It will run the ruby code and write the result to another file whic...
How to speed up insertion performance in PostgreSQL
...ch is according to the documentation is "somewhat faster than the text and CSV formats." Only do this if you have millions of rows to insert, and if you are comfortable with binary data.
Here is an example recipe in Python, using psycopg2 with binary input.
...
How to change Git log date formats
... This works a treat! Using a simple bash script to export a csv, now I can i have columns for year, month, week etc. Love it.
– Jamie Taylor
Mar 9 '16 at 9:18
1
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What are all the possible values for HTTP “Content-Type” header?
...ML (HTML mail).)
multipart/form-data
Type text
text/css
text/csv
text/html
text/javascript (obsolete)
text/plain
text/xml
Type video
video/mpeg
video/mp4
video/quicktime
video/x-ms-wmv
video/x-msvideo
video/x-flv
video/webm
Type vnd :
...
Which data type for latitude and longitude?
...able functions but is less accurate over very long distances.
Import your CSV to long lat fields to DECIMAL(10,6) columns. 6 digits is 10cm precision, should be plenty for most use cases.
Then cast your your imported data
SELECT
--ST_SetSRID(ST_Point(long, lat),4326) geom -- the wrong way be...
best way to preserve numpy arrays on disk
...o sacrifice a lot of performance, but it can be achieved fairly well using csv (which is also very portable of course).
More details and the code are available at the github repo.
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Django ModelForm: What is save(commit=False) used for?
..._type = "audio"
if attachment.filename.lower().endswith(('.csv','.dif','.ods','.xls','.tsv','.dat','.db','.xml','.xlsx','.xlr')):
attachment.file_type = "spreasheet"
if attachment.filename.lower().endswith(('.doc','.pdf','.rtf','.txt')):
...
How to create a temporary directory?
...UIT TERM
trap 'rm -rf "$TMPDIR"' EXIT
# Example use of TMPDIR:
for f in *.csv; do
cp "$f" "$TMPDIR"
# remove duplicate lines but keep order
perl -ne 'print if ++$k{$_}==1' "$TMPDIR/$f" > "$f"
done
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